@nyosegawa/agent-ui-web-components

@nyosegawa/agent-ui-web-components

Web Components wrapper for Agent UI React components.

Use this package when a host cannot mount React directly but can consume custom elements backed by Agent UI's React preset.

Install

bun add @nyosegawa/agent-ui-web-components @nyosegawa/agent-ui-react

Common Imports

Use case	Import
Define the default custom element	import { defineAgentChatElement } from "@nyosegawa/agent-ui-web-components";
Type element options	import type { AgentChatElementOptions } from "@nyosegawa/agent-ui-web-components";
Type the element class	import type { AgentChatElement } from "@nyosegawa/agent-ui-web-components";
Style the underlying React preset	import "@nyosegawa/agent-ui-react/styles.css";

Package Boundary

This package wraps Agent UI presentation as custom elements. Host applications still own Codex connection setup, runtime lifecycle, persistence, credentials, and app-specific workflows.

Pass transports, opaque initialState snapshots, agentOptions, and the React components replacement map as element properties. agentOptions is a complete replacement for the element configuration. Replacing transport or initialState remounts the underlying React provider.

Transcript display policy is also configured as JavaScript properties: element.transcriptDisplay, element.transcriptMode, or the matching agentOptions fields. Use transcriptMode = "answer-focused" for the built-in answer-focused preset, or pass the same transcriptDisplay policy object used by the React package.

The custom element does not import CSS automatically, spawn Codex, create auth, persist sessions, or provide hosted service policy. Hosts should import @nyosegawa/agent-ui-react/styles.css once and pass transports, callbacks, and component replacements as JavaScript properties.

See the repository docs for current package exports and integration guidance: https://github.com/nyosegawa/agent-ui